It's probably BSP (British Standard Pipe) not NPT, but they are so close in
terms of diameter and TPI (the only difference is the 55deg thread form
instead of the 60deg of the US one) that I would guess it would work.
**************************************
Tony Gordon
72 TR6
**************************************
----- Original Message -----
From: "Tony Drews" <tony@tonydrews.com>
To: <triumphs@autox.team.net>
Sent: Sunday, August 31, 2008 3:54 PM
Subject: Re: [TR] oil gallery ends plugs and oil gallery plugs
> The tap and plugs are 1/2"-14 NPT.
>
> - Tony
>
> At 02:21 PM 8/31/2008, Tony Drews wrote:
>>There's a pipe thread that's close to what's in the block
>>originally. Re-tap them with this, and put brass pipe thread plugs
>>with allen head ends. Just tap it deep enough that at least the
>>front plug doesn't interfere with the front plate. Also, if you go
>>too deep with the front plug, make sure you don't block the feed to
>>the front main - I had to grind a bevel on the backside of mine since
>>I got a little overzealous with the tap. I shove some paper towel
>>down the gallery before tapping so as little crap as possible gets in
>>the gallery, and then I clean it out very well before
>>assembly. Works best on a bare block that you can clean all passages
>>thoroughly after tapping.
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